<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>浮动与两侧皆自适应的流体布局</title>
<style>
/*左右结构,左侧、右侧自适应*/
body { font-size: 14px; background-color: #DDF3F7; color: #333; }
a { color: #0082CB; text-decoration: none; }
p { margin: 0; } img { border: 0; }

.mib_body { width: 600px; margin-left: auto; margin-right: auto; }
.mib_x { margin-bottom: 10px; background-color: #fff; }
.mib_list { padding: 20px; }
.mib_resize { overflow: auto; resize: both; }
.mib_vip { display: inline-block; width: 11px; height: 10px; margin-left: 1px; background: url(); }

.mib_head_a { float: left; margin-right: 20px; }
/* mib_cell左侧 下面这个是固定布局写法 */
.mib_cell { display: table-cell; *display: inline-block; width: 2000px; *width: auto; }

.mib_sms { line-height: 22px; padding-bottom: 6px; font-size: 14px; }
.mib_select { width: 80px; padding: 5px; font-size: 100%; }
</style>
</head>

<body>
<div id="mibBody" class="mib_body">
    <div class="mib_x mib_resize">
        <div class="mib_list">
            <a href="http://t.sina.com.cn/xuruoxuan" class="mib_head_a">
                <img id="mibHeadImg" title="徐若瑄VIVIAN" src="http://img.mukewang.com/53e2e9470001dfd200500050.jpg">
            </a>
            <div class="mib_cell">
                <p class="mib_sms"><a title="徐若瑄VIVIAN" href="#">徐若瑄VIVIAN<i title="新浪认证" class="mib_vip"></i></a>：一個人的晚餐！茶泡飯！飯、飯、飯… 今日不減肥，先把病治好再說！ 我認真吃完這，燒就會退了吧？！ 開動啦~~~~~~~~~~~~~~~~~~</p>
                <div class="feed_img"><img src="http://img.mukewang.com/53e2e9b10001948000890120.jpg" height="120"></div>
            </div>    
        </div>
    </div>
    <div class="mib_x">
        <div class="mib_list">
            <p class="mib_sms">
            	选择头像的宽度：<select id="minSelect" class="mib_select">
                	<option value="56px">56px</option>
                    <option value="70px">70px</option>
                    <option value="84px">84px</option>
                    <option value="100px">100px</option>
                </select>
            </p>
        </div>
    </div>
</div>
<script>
var ele_mibSelect = document.getElementById("minSelect"),
	ele_mibHeadImg = document.getElementById("mibHeadImg");
	
if (ele_mibSelect && ele_mibHeadImg) {
	ele_mibSelect.onchange = function() {
		ele_mibHeadImg.style.width = this.value;
	};
}
</script>
</body>
</html>